If additional areas got invalidated, don't try to add them to the paint

        * gtk/gtktextview.c (gtk_text_view_paint): If additional areas got
        invalidated, don't try to add them to the paint region: in an expose
        handler, we cannot paint outside the area that was passed in, since
        drawing will be clipped. So stealing the update region from the
        window causes lost draws.
        Patch by Owen Taylor


svn path=/trunk/; revision=22442

2 files changed, 11 insertions, 14 deletions

diff --git a/ChangeLog b/ChangeLog
index 1287e765c..5b35ed42f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,14 @@
+2009-03-02  Matthias Clasen  <mclasen@redhat.com>
+
+	Bug 573688 – Don't steal update region in gtk_text_view_paint()
+
+	* gtk/gtktextview.c (gtk_text_view_paint): If additional areas got
+	invalidated, don't try to add them to the paint region: in an expose
+	handler, we cannot paint outside the area that was passed in, since
+	drawing will be clipped. So stealing the update region from the
+	window causes lost draws.
+	Patch by Owen Taylor
+
 2009-03-02  Alexander Larsson  <alexl@redhat.com>
 
 	Bug 573087 – gdkwindow.c: {x,y}_offset used uninitialized
diff --git a/gtk/gtktextview.c b/gtk/gtktextview.c
index da4f56273..97e143309 100644
--- a/gtk/gtktextview.c
+++ b/gtk/gtktextview.c
@@ -4531,7 +4531,6 @@ gtk_text_view_paint (GtkWidget      *widget,
   GtkTextView *text_view;
   GList *child_exposes;
   GList *tmp_list;
-  GdkRegion *updates;
   
   text_view = GTK_TEXT_VIEW (widget);
 
@@ -4546,19 +4545,6 @@ gtk_text_view_paint (GtkWidget      *widget,
       gtk_text_view_flush_first_validate (text_view);
     }
 
-  /* More regions could have become invalid in the above loop */
-  updates = gdk_window_get_update_area (text_view->text_window->bin_window);
-  if (updates)
-    {
-      GdkRectangle rect;
-      
-      gdk_region_get_clipbox (updates, &rect);
-
-      gdk_rectangle_union (area, &rect, area);
-      
-      gdk_region_destroy (updates);
-    }
-  
   if (!text_view->onscreen_validated)
     {
       g_warning (G_STRLOC ": somehow some text lines were modified or scrolling occurred since the last validation of lines on the screen - may be a text widget bug.");